Lead/Principal Performance Engineer

## Responsibilities - Lead performance efforts across multi-team projects by designing traffic models, establishing scale goals, and implementing sophisticated automation and monitoring strategies. - Serve as the expert in database tuning and system optimization, driving design meetings by questioning implementation choices and proposing high-performance alternatives. - Rapidly build proofs of concept and lead research spikes to test ideas and address critical scale issues through rapid prototyping and fast iteration. - Coach and mentor engineers at all levels, lead code and design reviews, and partner with product managers to ensure performance is a core part of the definition of done. ## Requirements - 10+ years of experience as a software engineer or developer building platforms and applications at massive scale, including hands-on automation development. - Expert-level proficiency in Java, including Java Virtual Machine (JVM) performance tuning and Garbage Collection (GC) mechanisms, along with experience in Python, C, or Ruby on Rails. - Deep understanding of key performance metrics across throughput, latency, memory, central processing unit (CPU), disk, and network — with the ability to debug and resolve bottlenecks across all of them. - Strong communicator with a proven track record in Application Programming Interface (API) design, concurrency, resource efficiency, and the ability to present technical findings clearly to both engineers and executives. ## Nice to Have - Professional experience applying AI tools in automation or performance engineering contexts. - Familiarity with distributed data and transport systems such as Apache Kafka, Apache Cassandra, or Apache Spark. - Salesforce platform experience or Salesforce certifications. - A related technical degree. ## Benefits - Hybrid schedule of 1-3 days per week in office. - Access to AI agents that accelerate impact. - Equal opportunity employer with inclusive workplace policies. - Benefits and resources to support work-life balance. - Opportunities for career growth and innovation.